Optical fiber connector

The utility model provides an optical fiber connector, includes shield, shell and inner chamber. The shield includes a pair of location portion, and location portion stretches towards the direction of shell is protruding from the one end of shield, and a boss is established to every location portion epirelief. The shell has two at least draw -in grooves that suit with the boss. The inner chamber has the constant head tank that corresponds with positioning phase. When the inner chamber is acceptd in the shell, the shield lock on the shell, location portion block in constant head tank and boss block in draw -in groove. Thereby for the optical cable provides sealed, a thermal -insulated holding environment, easy operation, convenient to use can directly be used under the outdoor environment to has better waterproof dustproof and thermal -insulated effect.